Why ili9486 LCD need 74HC4094 to make spi interface to parallel interface LCD but HX8357D LCD just need spi

[DRAgon734465502]

[1]. Why ili9486 LCD need 74HC4094 to make spi interface to parallel interface LCD? like this: https://github.com/notro/fbtft/wiki/SPI-interface-circuit#test-script

   The 3.5inch  ili9486 LCD like PIscreen and wavewshare/spotpear 3.5 inch LCD  use 74HC4094 to make spi interface to parallel interface LCD
    But I find the wavewshare/spotpear  ili9486 3.5 inch LCD can be configured as SPI interface LCD.  I have try to use SPI interface to drive   ili9486 SPI interface LCD by fbtft driver with raspbian
    ,But the LCD display with Blurred screen

[2] HX8357D spi interface LCD like adafruit 3.5 inch LCD can be spi interface

 But I can not  find the  HX8357D spi interface  fbtft driver

I have a HX8357D spi interface LCD too, I want to define myself PIN port, So I need the HX8357D spi interface LCD fbtft driver like this: sudo modprobe fbtft_device name=flexfb gpios=dc:22,reset:27 speed=48000000 sudo modprobe flexfb width=320 height=240 buswidth=8 init=-1,0xCB,0x39,0x2C,0x00,...,-1,0x2c,-3

[DRAgon734465502]

Do anyone know why?

[notro]

Closing issue since there has been no activity in a long time. Reopen if needed.